Man-head crane for steam-boilers.



s.v DILLON- a; J. Nom'. mlnmn snm P03 STEAM nomma.l

' .APPLIOA'HOI FILM) JUNE 17, 1.908.

90056819. Patented 001:.6,19o8.

UNITED srmEsf PATENT oEErcE,

SYDNEYl DILLoN, or Enenwoon PARK, AND JOHN NOEY, OF BRADDOCK, PENNSYLVANIA.

f MAN-.rieten CRANE FonsrEAM-sornnns.

. To all/whom 'it may concern:

Be/it known that we, SYDNEY D1LLoN,'of

gewood Park, Allegheny" county, PennsvL' :y ma, and'JoHN NoEY, of Braddock, Alleivlilf @nf.lowing is a full, clear,

anew and useful Improvement in Man-Head Cranes yfor Steam-Boilers,l of which the folreference being had to the accom anying ,dramngs, formingpart of this speci I.inwln'chf f nu-in -showing the man-head and manhead cane ascOnStructed and applied'to a boiler i `o rfboiler drumin accordance with our invent1on; and Fig. -2 1s a longitudlnalsection of the same.

. Our invention relates lto the handling of yman-heads for closing man-holes in boilers' and similar vessels and the object of the in- -`vention is to provide improved lmeans for .handling such. man-heads' and for reducing theqamount of labor lnvolved 1n removing and replacing such heads in andfoutof lposition in theman-holes which are llocated in l A further objectfofour invention is 'to provide a manhead crane which can and quickly put into use on existing boilers and which is adaptedl to be secured in lace on .b oilers without the necessity of drilling holes in the shell or headvof the boilers.

.l ,The invention consists in providing means for suspending the man-head within the ;boiler soit can easily-and quickly be swung into.and out of its closing position inthe man-drole and in improved means for secur ing' the-a paratus forming the man-head crane to t e boiler without the necessity of drillingl or punching holes 4in the shell or head of the/boiler.

l In the drawings, 2 re resents a removable man-head shown 1n its c osing position in the arm 10 which arm is bent upwardly and inwardly and is provided on its lower end with `S eipicationof Letters Patent'. Application led June 17. 1908. Serial No. 438,944.

- ing and exact description,

catio1 1 the head being' rotated Fi`gure-1. Iis a transverse section of a bilel' d be easily appreciated `by those skilled in the art.

account of the yweight of such man-heads- Patented oct. '6, 190s.

a shoulder or flange 11 to limit the distance this arm projects into vthe socketin the lug 9. The man-head 2 is suspended fromfthe u per end of the swinging arm v'1.0 by means o the flexible chain 12 and shackle 13, so as to be adjustable vertically, vthe shackle 13 bei 1provided with a rotatable hook 14. The hoo 14 engages with the in 15 which is cast 1n 'place in the man-head) 2 andv permits of' in a vertlcal plane aboutthe axis of thelpin. 15. f

The man-head "2 is providedwith the customary T-slot 16 in which vthe usual T- headed bolts (not shown), are used for securing the man-head in place 'in the 'man-hole of the boiler. The man-head 2 is also provided with a' handle or link 1'7 to assist in moving the man-head into and out'ofposition in the man-hole.4

In the o eration of ourimproved applaratus, when 1t is desired to open the manole,

`the securing` bolts are removcll and the man# -head is pushed inwardly into the boiler. The

swingmg arm 10 carries the man-head and swings it inwardly-.into the boiler and out of the man-hole. 'When it is desired to close the-man-hole, the man-head is pulled back into position by means of the handle 17 and is then securedin its closing position in the man-hole by the securing bolts in the usual manner.

The advantages of our invention will 0be they are c liilicultI to handlewithout suspending them so as to permit of their being swung easily and quickly into place. By the use of ourimproved apparatus, the

man-head'can be moved into and'out ofits closing osition` andthe man-head is always dIed in position to be brought back in f By providing the lugs or bosses on each of the clamps, the swinging arm can be placed on either side ofthe Inanhole so as to permit ,the man-head being swung to whichever position'that is desired.

- The apparatus is simple and is easily applied. No holes extendlngV through the shell or head of the boiler for the securing bolts are necessary.

Modifications in the arrangement and the construction of the apparatus can be made without de artin from our invention. The clamp can e Ina two as is shown and one hw for the swinging varm may be used if desired.

e in one piece instead of in 'l`he lower end of the arm lt) majv be fapered so as to fit into a correspondinglv tapered hole in the llugl f) instead of providing a flange 1l. to limit the distance the arm will project into the opening in the boss or lug.

The manner of suspending the man-head from the swinging arm may be varied and other changes may be made without departing from our invention.

We claimz- 1.. A boiler or similar closed vessel having a man-hole therein provided with a flanged edge deiining its sides, a man-head, a swinging man-head support and means clamped on the flanged edge of the man-hole for securing said support in place; substantially as described.

2. A boiler or similar closed vessel having a man-hole provided with a flanged edge defining its sides, a man-head, a bent arm from which said man-head is suspended, vand means clamped on the flanged edge of said man-hole for securing said arm in. place on he flange of said man-hole; substantially as described.

A man-head support comprising a boiler or similar closed vessel having a man-hole therein, said man-hole having an inwardly turned flange defining the edge of the manhole, a man-head for closing said man-hole, a swi ging arm having connections from vhich said man-head is rsrnspended so as to be verticallyv adjustable, and a clamp having a socket in which said swinging arm is' pivotall)T mounted, said clam embracing the inwardly turned ange and raving means for tighteningthe clamp in place on` said iiange; substantially as described.

4. ln a man-head crane for boilers or similar closed vessels, the combination with a boiler or vessel having a man-hole therein, said man-hole having an inwardly projecting tlange, of a clamp secured on said fiange and having a socket therein, a swinging arm mounted in said socket and a man-head suspended from said arm so as to be vertically adjustable v thereon; substantially as described.

5. 1n a man-head crane for boilers or similar closed vessels, the eoinbmallon with a boiler or \*cssel"'ln1\iiig a man-hole therein,A

said man-hole having an integral, inwardly projecting flange, ofE a clamp secured on said ila-nge, and having a socket therein, a swinging arm removably mounted in said socket,

and a man-head suspended from said arin;'

substantially as described.

6. A boiler or similar closed vessel, having a man-hole provided with a flanged edge, lsupports secured to said edge at opposite sides of the hole and a swinging man-head 'support secured to the flanged edge ol said man-hole, a swinging manhead supporting arm or crane movably secured to said support, a man-head suspended from said arm, and a. flexible connection between said arm and man-head; substantialhv as described.

S. A boiler or similar closed vessel having a man-hole provided with a flanged' edge, a support secured to the flanged edge of' said man-hole, a swinging man-head supporting arm or crane movablv secured to said support, a man-head suspended from said arm, and connections between said swinging arm and the man-head arrai'iged to permit movement of said man-head in a horizontal piane; substantially as described.A

9. A boiler or similar closed vessel having a man-holeA provided with a flanged edge, a man-head for closing said man-hole, a swinging arm from which said man-head is suspended, and a sup ort secured to the flanged edge of said man-hole 'to which said arm is attached; substantiallyv as described.

In testimony whereof, we have hereunto 

